1 files changed, 21 insertions, 0 deletions

diff --git a/include/uapi/linux/fadvise.h b/include/uapi/linux/fadvise.h
new file mode 100644
index 000000000000..e8e747139b9a
--- /dev/null
+++ b/include/uapi/linux/fadvise.h
@@ -0,0 +1,21 @@
+#ifndef FADVISE_H_INCLUDED
+#define FADVISE_H_INCLUDED
+
+#define POSIX_FADV_NORMAL       0 /* No further special treatment.  */
+#define POSIX_FADV_RANDOM       1 /* Expect random page references.  */
+#define POSIX_FADV_SEQUENTIAL   2 /* Expect sequential page references.  */
+#define POSIX_FADV_WILLNEED     3 /* Will need these pages.  */
+
+/*
+ * The advise values for POSIX_FADV_DONTNEED and POSIX_ADV_NOREUSE
+ * for s390-64 differ from the values for the rest of the world.
+ */
+#if defined(__s390x__)
+#define POSIX_FADV_DONTNEED     6 /* Don't need these pages.  */
+#define POSIX_FADV_NOREUSE      7 /* Data will be accessed once.  */
+#else
+#define POSIX_FADV_DONTNEED     4 /* Don't need these pages.  */
+#define POSIX_FADV_NOREUSE      5 /* Data will be accessed once.  */
+#endif
+
+#endif  /* FADVISE_H_INCLUDED */